Dr. Steven C. Schlack-Haerer, MD
- Medicare services, 2024
- 239
- Medicare patients, 2024
- 117
- Part D claims, 2024
- 232
- Hospital affiliations
- 1
- Industry payments
- $97
- Practice address
- 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601
- Practice phone
- Call (608) 775-3176
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gundersen Lutheran Medical Center - Dialysis
Dialysis Center - Hospital-Based · La Crosse, Wisconsin
Find Dr. Schlack-Haerer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Steven C. Schlack-Haerer is a gastroenterologist in La Crosse, Wisconsin
Dr. Schlack-Haerer practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin.
Dr. Schlack-Haerer's NPI, 1568466142, was assigned on June 10, 2005. Dr. Schlack-Haerer holds Wisconsin license 33768.
- NPI
- 1568466142NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759345663
- NPI enumeration date
- June 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 775-3176
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven C. Schlack-Haerer practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin
Dr. Schlack-Haerer's primary practice is Gundersen Lutheran Medical Center - Dialysis, at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 in La Crosse County. The practice phone is (608) 775-3176.
- Gundersen Lutheran Medical Center - Dialysis1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 · La Crosse CountyPhone(608) 775-3176
Source: Dmand AI Affiliation Data
Dr. Steven C. Schlack-Haerer is affiliated with 3 sites of care and 2 medical groups
Dr. Schlack-Haerer's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dr. Schlack-Haerer is also affiliated with Gundersen Lutheran Medical Center. The medical group on file is Gundersen Lutheran Medical Center. Dmand AI also links Dr. Schlack-Haerer to 1 more group practice or clinic and 1 medical group, each named with a free account. Dr. Schlack-Haerer's employer is on file too: a dialysis center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven C. Schlack-Haerer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schlack-Haerer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gundersen Lutheran Medical Center - Dialysis | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven C. Schlack-Haerer is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Schlack-Haerer's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Schlack-Haerer is licensed in Wisconsin.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
Gastroenterologists near Dr. Schlack-Haerer
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Steven C. Schlack-Haerer billed Medicare for 239 services in 2024
CMS data shows 239 Medicare services from Dr. Schlack-Haerer across 9 procedure codes in 2024, for 117 Medicare patients. Medicare paid $16,533 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Schlack-Haerer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1242024: 11110%
- Other services
- 2023: 1622024: 7852%
- Office and hospital visits
- 2023: 522024: 504%
Dr. Schlack-Haerer compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Schlack-Haerer
- Wisconsin median
- Medicare services
- 239vs 32927% below
- Medicare patients
- 117vs 25855% below
- Part D claims
- 164vs 42962% below
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Schlack-Haerer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schlack-Haerer and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven C. Schlack-Haerer treated 117 Medicare patients in 2024, average age 73
CMS counts 117 Medicare patients who saw Dr. Schlack-Haerer in 2024. The largest group is 65 to 74, with 54 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Schlack-Haerer's median patient age at 66, with 57% women.
Dr. Schlack-Haerer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Schlack-Haerer's Medicare patients by sex, 2024
- Women5749%
- Men6051%
Chronic conditions among Dr. Schlack-Haerer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease53%
- Arthritis40%
- Diabetes34%
- Ischemic heart disease29%
- Mood disorders29%
- Anxiety26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schlack-Haerer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven C. Schlack-Haerer wrote 232 Medicare Part D claims in 2024
In 2024, Dr. Schlack-Haerer wrote 232 Medicare Part D claims for 105 patients. 81% of them were for generic drugs. CMS names the drug for 164 of them, across 6 drugs with 11 or more claims each, at $79,079 in total drug cost. In 2023, CMS named 609 claims across 19 drugs.
Dr. Schlack-Haerer's Part D claims by kind of drug, 2024
- Generic187 claims81%
- Brand-name and other45 claims19%
Dr. Schlack-Haerer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6092024: 16473%
Drugs named by CMS: 6 in 2024, 19 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Steven C. Schlack-Haerer ranks in the 73rd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Schlack-Haerer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 84 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Schlack-Haerer, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Schlack-Haerer ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 73rd percentile84 procedures
- Colonoscopy
- 53rd percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Steven C. Schlack-Haerer received $97 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Schlack-Haerer from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. AtriCure, Inc. paid the most, $97.
Companies that paid Dr. Schlack-Haerer the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Steven C. Schlack-Haerer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Steven C. Schlack-Haerer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Steven C. Schlack-Haerer's NPI number?
Dr. Steven C. Schlack-Haerer's NPI number is 1568466142. It was assigned on June 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven C. Schlack-Haerer?
Dr. Steven C. Schlack-Haerer is a gastroenterologist in La Crosse, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Steven C. Schlack-Haerer practice?
Dr. Schlack-Haerer practices at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601. Dr. Schlack-Haerer's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dmand AI also links Dr. Schlack-Haerer to 1 group practice or clinic and 1 medical group.
What is Dr. Steven C. Schlack-Haerer's office phone number?
The practice phone on file for Dr. Schlack-Haerer is (608) 775-3176.
What is Dr. Steven C. Schlack-Haerer's medical license number?
Dr. Schlack-Haerer holds Wisconsin license 33768.
Which hospitals is Dr. Steven C. Schlack-Haerer affiliated with?
Dr. Schlack-Haerer is affiliated with Gundersen Lutheran Medical Center.
What medical group is Dr. Steven C. Schlack-Haerer part of?
Dr. Schlack-Haerer is linked to Gundersen Lutheran Medical Center. Dmand AI links Dr. Schlack-Haerer to 1 more medical group.
Does Dr. Steven C. Schlack-Haerer accept Medicare?
Yes. CMS data shows Dr. Schlack-Haerer billed Medicare for 239 services in 2024, and Dr. Schlack-Haerer accepts Medicare assignment.
How many Medicare patients does Dr. Steven C. Schlack-Haerer see?
CMS counts 117 Medicare patients who saw Dr. Schlack-Haerer in 2024, with an average age of 73.
What services does Dr. Steven C. Schlack-Haerer bill to Medicare?
In 2024, Dr. Schlack-Haerer's most billed Medicare services were medicare service (G0500), hospital inpatient care (99222) and surgery: digestive system (43239).
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What drugs does Dr. Steven C. Schlack-Haerer prescribe most?
In 2024 Medicare Part D data, Dr. Schlack-Haerer's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Peg-3350 And Electrolytes.
Has Dr. Steven C. Schlack-Haerer received payments from drug or device companies?
CMS Open Payments shows $97 in general payments to Dr. Schlack-Haerer from 1 company from 2023 to 2023. The largest total came from AtriCure, Inc.
How long has Dr. Steven C. Schlack-Haerer been practicing?
Dr. Schlack-Haerer graduated from medical school in 1991, 35 years ago.
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